linux-kernel - [PATCH 05/40] x86: add NR_syscalls_compat, make ia32 syscall table visible

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Message-Id: <1277287401-28571-6-git-send-email-imunsie@au1.ibm.com>
Date:	Wed, 23 Jun 2010 20:02:46 +1000
From:	"Ian Munsie" <imunsie@....ibm.com>
To:	linux-kernel@...r.kernel.org, linuxppc-dev@...abs.org
Cc:	Jason Baron <jbaron@...hat.com>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Steven Rostedt <rostedt@...dmis.org>,
	Ingo Molnar <mingo@...hat.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Ian Munsie <imunsie@....ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Hellwig <hch@....de>,
	"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 05/40] x86: add NR_syscalls_compat, make ia32 syscall table visible

From: Jason Baron <jbaron@...hat.com>

Add 'NR_syscalls_compat' global for x86. Also, make 'ia32_sys_call_table' into a
global.

Signed-off-by: Jason Baron <jbaron@...hat.com>
Signed-off-by: Ian Munsie <imunsie@....ibm.com>
---
 arch/x86/ia32/ia32entry.S     |    3 +++
 arch/x86/include/asm/compat.h |    2 ++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
index e790bc1..94b9022 100644
--- a/arch/x86/ia32/ia32entry.S
+++ b/arch/x86/ia32/ia32entry.S
@@ -503,6 +503,7 @@ END(ia32_ptregs_common)
 
 	.section .rodata,"a"
 	.align 8
+.globl ia32_sys_call_table
 ia32_sys_call_table:
 	.quad sys_restart_syscall
 	.quad sys_exit
@@ -843,3 +844,5 @@ ia32_sys_call_table:
 	.quad sys_perf_event_open
 	.quad compat_sys_recvmmsg
 ia32_syscall_end:
+.globl NR_syscalls_compat
+NR_syscalls_compat: .int ((ia32_syscall_end - ia32_sys_call_table)/8)
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 306160e..55109f8 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -216,4 +216,6 @@ static inline int is_compat_task(void)
 	return current_thread_info()->status & TS_COMPAT;
 }
 
+extern int NR_syscalls_compat;
+
 #endif /* _ASM_X86_COMPAT_H */
-- 
1.7.1

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